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Related Concept Videos

Language Development01:22

Language Development

1.1K
Children master language quickly and with relative ease, supported by both biological predisposition and reinforcement. B. F. Skinner (1957) proposed that language is learned through reinforcement, while Noam Chomsky (1965) argued that language acquisition mechanisms are biologically determined.
The critical period for language acquisition suggests that the ability to acquire language is at its peak early in life. As people age, this proficiency decreases. Language development begins very...
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Mnemonic Devices01:23

Mnemonic Devices

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Mnemonic devices are cognitive tools that facilitate memory retention by linking new information to familiar patterns or organizational strategies. These techniques are beneficial for remembering complex or lengthy sets of information by simplifying and structuring them in easily retrievable ways.
Acronyms
Acronyms are created by using the initial letters of a series of words to form a new word or phrase. This approach condenses complex information into a single, memorable entity. For example,...
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The Nativist Approach01:21

The Nativist Approach

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The nativist approach to infant cognitive development proposes that infants are born with inherent knowledge structures that allow them to interpret the world almost immediately. This perspective contrasts with earlier developmental theories, such as those proposed by Jean Piaget, which emphasized a more gradual acquisition of cognitive abilities through interaction with the environment. One key concept in this approach is object permanence — the understanding that objects continue to...
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Long-term Potentiation01:35

Long-term Potentiation

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Long-term potentiation, or LTP, is one of the ways by which synaptic plasticity—changes in the strength of chemical synapses—can occur in the brain. LTP is the process of synaptic strengthening that occurs over time between pre- and postsynaptic neuronal connections. The synaptic strengthening of LTP works in opposition to the synaptic weakening of long-term depression (LTD) and together are the main mechanisms that underlie learning and memory.
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Long-term Potentiation01:25

Long-term Potentiation

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Long-term potentiation, or LTP, is one of the ways by which synaptic plasticity—changes in the strength of chemical synapses—can occur in the brain. LTP is the process of synaptic strengthening that occurs over time between pre and postsynaptic neuronal connections. The synaptic strengthening of LTP works in opposition to the synaptic weakening of long-term depression (LTD) and together are the main mechanisms that underlie learning and memory.
Hebbian LTP
LTP can occur when...
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Narcolepsy01:07

Narcolepsy

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Narcolepsy is a chronic sleep disorder characterized by pervasive, uncontrolled sleepiness and other sleep disturbances. One of its hallmark symptoms is an abrupt transition to REM sleep upon falling asleep, which causes symptoms typically associated with this phase to occur unexpectedly during wakefulness. These include the following symptoms, which typically last from a minute or two to half an hour.
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Related Experiment Video

Updated: Apr 12, 2026

Measuring Neural Mechanisms Underlying Sleep-Dependent Memory Consolidation During Naps in Early Childhood
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Measuring Neural Mechanisms Underlying Sleep-Dependent Memory Consolidation During Naps in Early Childhood

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Napping facilitates word learning in early lexical development.

Klára Horváth1, Kyle Myers1, Russell Foster2

  • 1Department of Experimental Psychology, University of Oxford, Oxford, UK.

Journal of Sleep Research
|May 8, 2015
PubMed
Summary
This summary is machine-generated.

Daytime naps significantly improve word learning in 16-month-old infants. Napping infants showed enhanced word recall compared to those who stayed awake, highlighting sleep's role in early cognitive development.

Keywords:
daytime sleepinfancylanguage acquisitionmemorysleep-dependent memory consolidation

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Area of Science:

  • Developmental Psychology
  • Cognitive Neuroscience
  • Pediatric Sleep Studies

Background:

  • Limited understanding of sleep's impact on early cognitive development.
  • The specific role of daytime napping in infant word acquisition remains under-explored.

Purpose of the Study:

  • To investigate the effect of daytime naps on word learning in 16-month-old infants.
  • To determine if sleep consolidation aids in retaining newly learned object-word associations.

Main Methods:

  • Thirty-four infants were divided into nap and wake groups.
  • Object-word pairs were taught, followed by testing using an eye-tracker and preferential looking task.
  • Performance was reassessed after a 2-hour delay including sleep for the nap group.

Main Results:

  • A significant interaction showed improved performance in the nap group post-nap.
  • The wake group's performance did not change significantly over the delay period.
  • Enhanced word learning gain correlated positively with expressive vocabulary size in napping infants.

Conclusions:

  • Daytime napping plays a crucial role in consolidating newly learned words in infancy.
  • Sleep facilitates memory consolidation, supporting early language acquisition.
  • Findings underscore the importance of napping for infant cognitive development and vocabulary growth.